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Stels [109]

3 years ago

le" class="latex-formula">

Mathematics

1 answer:

Zina [86]3 years ago

3 0

Answer:

$\large\boxed{19\dfrac{17}{20}}$

Step-by-step explanation:

$\text{First step:}\\\\\text{Find LCD}\ (Least\ Common\ Denominator)\\\\LCD=20\\\\4\cdot5=20\\5\cdot4=20\\\\\dfrac{1}{4}=\dfrac{1\cdot5}{4\cdot5}=\dfrac{5}{20}\\\\\dfrac{3}{5}=\dfrac{3\cdot4}{5\cdot4}=\dfrac{12}{20}\\\\9\dfrac{1}{4}+10\dfrac{3}{5}=9\dfrac{5}{20}+10\dfrac{12}{20}=(9+10)+\dfrac{5+12}{20}=19\dfrac{17}{20}$

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A plumber charges $10 for transportation and $37 per hour for repairs.

Ganezh [65]

Answer:

10+37h

Step-by-step explanation:

10 is the flat fee so only happens once

37 is hourly rate so multiply by h (hours)

6 0

3 years ago

Every jump a game piece makes measures 8/9 . The piece starts at point A = 7 and jumps to the right. As soon as the piece jumps

frutty [35]

Answer:

There will be a total 40 jumps.

Step-by-step explanation:

Every jump a game piece makes measures $\frac{8}{9} = 0.889$ .

Now, the piece starts at point A = 7 and jumps to the right.

So, the piece will jump over B = 24 after $\frac{24 - 7}{0.889} = 19.122$ ≈ 20 complete jumps.

Then it switches direction to the left and the piece then stops at point A.

So, there will be a total (20 + 20) = 40 jumps. (Answer)

4 0

3 years ago

An ambitious statistical-education researcher wants to analyze the typical statistical skills of STEM (science, technology, engi

antiseptic1488 [7]

Answer:

Option b, c and e are wonderful approaches to solve the problem.

Step-by-step explanation:

Option (b) is appropriate this is because the option is talking about Simple random sampling where random universities are chosen to remove bias.

Option (c) is correct because this is an example of Stratified sampling where two homogenous groups (private and public universities are considered) and samples are chosen at random to remove bias

Option (e) is correct because this again is an example of Simple random sampling where 60 random STEM majors are chosen at random.

7 0

4 years ago

For what value of c is the relation a function?

nydimaria [60]

Answer:

{ c ∣ c ≠ 2 , 12, -1, 0, c ∈ R }

Step-by-step explanation:

Considering the set

$\left\{\left(2,\:8\right),\left(12,\:3\right),\:\left(c,\:4\right),\:\left(-1,\:8\right),\:\left(0,\:3\right)\right\}$

As we know that

A function is said to be a relation if every x-value has one and only one y-value.

So, the value of c must not be equal to 2, 12, -1, 0 i.e. c ≠ 2, 12, -1, 0

Therefore,

{ c ∣ c ≠ 2 , 12, -1, 0, c ∈ R }

7 0

3 years ago

PLEASE ANSWER THIS QUICKLY! THANK YOU!

Citrus2011 [14]

1/2 / 3/4
= 1/2 x 4/3
= 4/6
= 2/3

a = 2
b = 4
c = 3
d = 2
e = 3

3 0

4 years ago